Are you downloading from google play? Thats where you should be downloading.

Thanks for replying. ? Yes I was trying to download from google play..

Hmm, can you try to uninstall firefox, then download from google play again, hopefully whoever put the update on google play didnt mess it up.

Firefox is uninstalled. ? No change..still says package file invalid

Havent gotten any one else report problems on this, does downloading from.

• ftp://ftp.mozilla.org/pub/mobile/releases/23.0/

work?

Tried to go to that page..page appears that says webpage not available

I have no idea what to do after this, have you killed the firefox process or reset the phone (turn on and off)